J 2002

Vegetation composition, main gradient and subatlantic elements in spring fens of the northwestern Carpathian borders

HÁJEK, Michal a Petra HÁJKOVÁ

Základní údaje

Originální název

Vegetation composition, main gradient and subatlantic elements in spring fens of the northwestern Carpathian borders

Autoři

HÁJEK, Michal (203 Česká republika, garant) a Petra HÁJKOVÁ (203 Česká republika)

Vydání

Thaiszia - J.Bot. Košice, Botanical Garden of UPJŠ, 2002, 1210-0420

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Slovensko

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/02:00006457

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Czech Republic; mires; ordination; phytosociology; Poland; Slovakia; water properties
Změněno: 8. 10. 2002 17:31, prof. Mgr. Michal Hájek, Ph.D.

Anotace

V originále

The vegetation composition and the physical-chemical properties of waters were recorded on spring fens in the northwestern Carpathians (the Moravskoslezské Beskydy Mts., the Turzovská vrchovina Mts., the Kysucká vrchovina Mts. and the Bieskid Żywiecki Mts.; Czech Republic, Slovakia, Poland). Combinations of species groups, which indicate mineral ion concentration levels in the water, have been used in delimitation of plant communities. The poor-rich trophic gradient controls the major vegetation gradient. Five widely distributed communities were distinguished along this gradient: the Valeriano-Caricetum flavae association (rich alkaline spring fens depositing peat, moderate slopes), the Sphagno warnstorfii-Eriophoretum latifoliae ass. (moderately rich, neutral spring fens or alkaline sources of poor water or advanced succession stages), the Caricetum goodenowii ass. (moderately poor, neutral sites with low organic content in the soil), the Carici echinatae-Sphagnetum sphagnetosum flexuosi subass. (poor spring fens with a stable water regime and moderately acid pH) and the Carici echinatae-Sphagnetum sphagnetosum fallacis subass. (strongly acid poor fens, especially sites with lowered water table). Two other rich fen communities, the Eleocharitetum pauciflorae and the Carici flavae-Cratoneuretum, were found only occasionally in the study area. The vegetation composition correlates best with the pH and conductivity of the water. Both the water redox-potential and the altitude also increase towards the poor end of the gradient. There is an important group of subatlantic species occurring in the study area, generally rare in the Western Carpathians. These species grow mainly in the central part of the major vegetation gradient, on moderately acid and moderately poor fens (Caricetum goodenowii, Carici echinatae-Sphagnetum sphagnetosum flexuosi).

Návaznosti

GA206/99/1240, projekt VaV
Název: Svahová prameniště moravskoslovenského pomezí - flóra, vegetace, stanoviště a vývoj v mladším holocénu
Investor: Grantová agentura ČR, Svahová prameniště moravskoslovenského pomezí - flóra, vegetace, stanoviště a vývoj v mladším holocénu